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linux: handle missing /sys/class/power_supply in sensors_battery() - #2595

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linux: handle missing /sys/class/power_supply in sensors_battery()#2595
bdrung wants to merge 1 commit into
giampaolo:masterfrom
bdrung:missing-power-supply

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@bdrung bdrung commented Jun 30, 2025

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The test TestModuleFunctionsLeaks.test_sensors_battery fails on Ubuntu s390x in sensors_battery with:

FileNotFoundError: [Errno 2] No such file or directory: '/sys/class/power_supply'

Fix sensors_battery to return None in case POWER_SUPPLY_PATH does not exist.

@bdrung
bdrung force-pushed the missing-power-supply branch from bdedc8b to b7bb733 Compare June 30, 2025 12:01
@bdrung
bdrung force-pushed the missing-power-supply branch from b7bb733 to 11fa37b Compare October 17, 2025 12:55
@bdrung
linux: handle missing /sys/class/power_supply in sensors_battery()
7dcea77 
The test `TestModuleFunctionsLeaks.test_sensors_battery` fails on Ubuntu
s390x in `sensors_battery` with:

```
FileNotFoundError: [Errno 2] No such file or directory: '/sys/class/power_supply'
```

Fix `sensors_battery` to return `None` in case `POWER_SUPPLY_PATH` does
not exist.

Fixes: giampaolo#2067
Signed-off-by: Benjamin Drung <benjamin.drung@canonical.com>
@bdrung
bdrung force-pushed the missing-power-supply branch from 11fa37b to 7dcea77 Compare October 21, 2025 09:08
@giampaolo giampaolo added bug type linux platform : Linux specific critical process dies, hangs forever, or memory is corrupt: segfault, deadlock, double free, crash on import badexc psutil raises something other than NoSuchProcess, AccessDenied, ZombieProcess or TimeoutExpired and removed critical process dies, hangs forever, or memory is corrupt: segfault, deadlock, double free, crash on import labels Aug 4, 2026
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badexc psutil raises something other than NoSuchProcess, AccessDenied, ZombieProcess or TimeoutExpired bug type linux platform : Linux specific

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[Linux/Docker] hasattr(psutil, 'sensors_battery') returns True even when a battery isn't available:

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